Rolex GMT-Master IIvsUndone Basecamp Collector

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Rolex GMT-Master II at true scale

GMT-Master II

Undone Basecamp Collector at true scale

Basecamp Collector

Diameter

40mm

40mm

Water Resistance

n/a

100m

MSRP

$4,500

$695

lowest

Movement

Rolex 3185

Seiko NH34

Case

4 specs
Material
Stainless Steel
Titanium
Finish
Brushed and Polished
n/a
Water Resistance
n/a
100m
Caseback
Solid
n/a

Crystal & Dial

3 specs
Crystal Shape
Flat
n/a
Dial Color
Black
n/a
Indices
Applied
n/a

Movement

1 specs
Caliber
Rolex 3185
Seiko NH34

Pricing

1 specs
MSRP
$4,500
$695
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Rolex GMT-Master II

Owners widely praise the Rolex GMT-Master II for its aesthetic appeal, with specific admiration for the "Root Beer" variant's Oystersteel and Everose gold combination and black/brown Cerachrom bezel, as well as the black dial with green accents. Some owners find its size and "bling ratio" fitting, with one owner ranking it at the top of their list and another calling it a dream watch. One owner's 2011 GMT-Master II gained approximately 5 seconds per day. The newer grey and black GMT-Master II is noted for offering a more reserved aesthetic with a subtle gradient bezel and green dial text, available on Oyster or Jubilee bracelet. Overall, owners rate the Rolex GMT-Master II highly for its desirable aesthetics and wearability.

Undone Basecamp Collector

Owners widely praise the Undone Basecamp Collector for its attractive, vintage-inspired design and excellent value, with reviewers highlighting its well-finished 40mm steel case that feels comfortable and versatile, offering excellent polishing for its price. Some owners report strong accuracy around 20 seconds off per week, and the Seiko NH34 automatic movement provides confidence. The watch features a bi-directional bezel with good friction, and some variants offer dual luminant colors and unique dials. However, the mineral crystal can cause glare, and the ultra-domed polycarbonate crystal, while contributing to an "instant vintage feeling," may present durability concerns for some. The 40mm case has short lugs that make it wear noticeably smaller, which may be outside the ideal range for some despite larger wrists. Overall, owners and reviewers rate the Undone Basecamp Collector highly for its vintage aesthetic and strong value proposition at its price point.